MS51975-53
View detailed technical data, stock status, and sourcing information for: MS51975-53
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Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-993-8607
Item Name Code
22846
Assigment Date
04/04/1967 (59 years ago)
0.845 inches minimum and 0.875 inches maximum thread length, 2.335 inches minimum and 2.385 inches maximum fastener length, 3a thread class, right-hand thread direction, flat chamfer head style
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.845 inches minimum and 0.875 inches maximum
- Fastener Length
- 2.335 inches minimum and 2.385 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.977 inches minimum and 1.000 inches maximum
- Head Height
- 0.490 inches minimum and 0.500 inches maximum
- Shoulder Diameter
- 0.746 inches minimum and 0.748 inches maximum first shoulder
- Shoulder Length
- 1.397 inches minimum and 1.417 inches maximum first shoulder
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.625 inches
- Width Across Flats
- 0.375 inches nominal
- Thread Quantity Per Inch
- 11
- Minimum Tensile Strength
- 140000 pounds per square inch
- Hardness Rating
- 32.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Shoulder Shape
- round first shoulder
- Material
- steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740 overall
- Material Document And Classification
- sae assn std all material responses overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec single treatment response overall
- Thread Series Designator
- unc
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| MS51975-53 | Shoulder Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-993-8607?
The FSCG of the NSN 5305-00-993-8607 is 5305
Does the NSN 5305-00-993-8607 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-993-8607 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-00-993-8607 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-993-8607 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-00-993-8607 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Tue, Apr 4, 1967
Professional Distribution
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Surplus | 38 |
| New Material | 809 |
| Total | 847 |
Availability of this item was last updated on:
12/23/2025 03:12 PM EST.
Stock levels and pricing are subject to change.